Pocket cash-register



(No Model.)

W. AMBRUSTER.

POCKET CASH REGISTER.

No. 480057. Patented Aug. 2, 1892.

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UNITED STATES PATENT OFFICE.

VILLIAM AMBRUSTER, OF ST. LOUIS, MSSOURI.

POCKET CASH-REGISTER.

SPECIFICATION forming part of Letters Patent No. 480,057, dated August 2, 1892.

Application filed March 25,1892.

To all whom it 11m/y concern:

Be it known that I, WILLIAM AMBRUsTEE, of the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Pocket Cash-Registers, 0f which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in pocket cash-registers; and it consists in the novel arrangement and combination of parts, as Will be more fully hereinafter described, and designated in the claims.

Figure l is the front elevation of my com` plete invention, showing the dial and face of the register. Fig. 2 is a vertical longitudinal section of the casing of the register, showing the interior construction and mov# able parts in plan; and Fig. 3 is a vertical transverse section of my invention, showing the location and construction of the movable parts.

The invention to be hereinafter described is constructed especially for registering the amount of a purchase, and is designed to be conveniently carried in the pocket and manipulated or operated by the hand for indicating said amount upon the dial of the said register. v

The device herein constructed is designed to register from five cents up to and including ten dollars, the larger hand of said register indicating the cents and the smaller one indicating the number of dollars.

Referring to the drawings, 1 represents the casing of the register, which is of such a shape as to be conveniently carried in the pocket, the same being preferably constructed in the shape of a Watch, which is found to be the most desirable.

2 represents the post of the said register, which is attached in any mechanical manner to the same, to which a ring 3 is attached for receiving a chain or cord.

t represents a short operating-shaft, which is loosely journaled in the post 2, and to the upper end thereof is attached a knob 5, which provides means for turning the said shaft and in turn operates the hands of the register in a manner hereinafter described. To the lower end of said shaft is fixed a gear Serial No. 426.358. (No model.)

wheel G, the teeth of which are adapted to mesh with the teeth of a large gear-wheel 7 for imparting motion to suitable mechanism, to be described.

8 represents the dial of the register, which is circular in shape, conforming to the shape of the register, and located in front and covering said dial is a circular glass 9, the edge of which is secured to the casing 1 of the register in any desirable manner, premising, however, that suitable space is left between the said dial and glass for allowing the hands of the register to be rotated when motion is imparted to the same.

10 represents a short shaft, to one end of which is fixed the gear-wheel 7 by means of a key 11,which passes through the said gearwheel and into the said shaft, as better illustrated in Fig. 3. The said shaft 10 is provided with asmall circular extension 12, which passes through an opening in the center of the dial 8, to which is fixed the large hand 13, which hand indicates the amount of cents. To the said shaft 10 is fixed a ratchet-wheel 141, which is rotated by the said shaft, and the extension 15 of said ratchet wheel, provided with a pin 16, which is adapted to come in contact with the teeth of a suitable gear-wheel 19 for moving the dollar-hand of the register one position when the said ratchet-wheel is entirely rotated once.

17 represents a shaft, which is located to one side of the said shaft 10 but parallel therewith, and has its bearings i-n the said dial 8 and the bracket 1S, respectively, to which shaft is fixed a small gear-wheel 19, which is located in rear of the said ratchet-wheel 14 and be-1 tween the said bracket and dial, in which position the saine will be turned when the pin 16 comes in contact with the teeth of the said gear-wheel. The said bracket 18 is fixed in any mechanical manner to the rear surface of the dial 8, whereby the same is supported and held in its proper position, and to the projecting end of the said shaft 17 is fixed a small hand 20, which is adapted to register with the numbers of the smaller dial 21 for indicating the number of dollars.

22 representsaflat spring, one end of which is rigidly attached to the inner surface of the casing 1 of theregister, and the free end there IOC) of is in contact With the teeth of the ratchet- Wheel 14, whereby the hand 13 is held at each movement of the same, and, further, for preventing the same from moving when the same is not operated by the hand.

23 represents a second flat spring, one end of which is attached to the interior surface of the said casing 1, and the free endof the said spring is normally in contact With the gear- Wheel19 for holding the same in its proper p0- sition and preventingthe hand 2O from turning when the register is not operated.

Y When the knob 5 is turned in the proper direction, motion will be imparted to the gear- Wheel 6, which in turn imparts motion to the gear-Wheel 7, and consequently to the shaft 10, rotatingthe hand 13, which hand indicates the number of cents. When the shaft 10 is rotated once, the pin 16 Will come in contact with one of the teeth of the gear-wheel 19, moving the hand 2O one position, indicating that the hand 13 has moved one complete revolution and the amount of one dollar registered on the dial 21.

The register herein described can be manufactured very cheaply by cutting the several parts from sheet metal by suitable dies for that purpose and stamped inthe proper form by suitable formers.

It will be readily understood that the register could be constructed to indicate a larger amount than ten dollars by changing the dimensions of the several parts and by the employment of a dial or dials having a larger number of figures.

Having fully described my invention, What I claim is- 1. In a pocket cash-register, the combination, With a casing provided with a main and an auxiliary dial and at its periphery With a tubular post 2, of a main shaft journaled in said casing and carrying a hand traveling over the main dial, a gear-Wheel 7, fixed to said shaft, a shaft 4, disposed in the post 2 and carrying a knob 5 at its outer end and a pinion 6 at its inner end meshing With the gear 7, a second shaft journaled at one side the main shaft and carrying a hand traveling over the auxiliary dial, a pinion 19, fixed to said auxiliary shaft, and a pin or stud 16, projecting from the main shaft and adapted to engage the pinion 19, substantially as and for the purpose Set forth.

2. A pocket cash-register consisting of a casing 1, a dial-S, fixed therein, a smaller dial 21, printed on said first-named dial, a shaft 10, fastened to the center of said dial 8, a hand 13, carried by said shaft, a gear-wheel 7, fixed to the opposite end of said shaft, ashaft 4, provided with a gear-Wheel 6, the teeth of which are adapted to mesh with the teeth of the gear-Wheel 7, a ratchet-Wheel 14, also fixed to said shaft, a spring 22 in contact with the said ratchet-Wheel, a shaft 17, also passing through the said dial and carrying a suitable hand, a gear-Wheel 19, fixed to said shaft 17, a pin 16, secured to the extension 15 of said ratchet-Wheel and adapted to come in contact with the teeth of said gear-Wheel, a bracket 18 for supporting the said shaft 17, and a spring 23, the free end of which is in contact With the said gear-Wheel 19 for holding the same against movement independent of the operating mechanism, substantially as described.

In testimony whereof I affix my signature in presence of tWo Witnesses.

WILLIAM AMBRUSTER.

Witnesses:

C. F. KELLER, ALFRED A. EIoKs. 

